Temperature display sticker based on temperature indicating ink

Abstract

The utility model discloses a temperature display sticker based on temperature indicating printing ink, which relates to the field of temperature monitoring, and comprises a box body, a fixing belt, an identification unit and a fixing unit, the box body is used for containing goods, the outer side of the box body is provided with the identification unit, the identification unit can display different colors at different temperatures, and the fixing belt is arranged on the outer side of the box body. A fixing unit is arranged on one side of the recognition unit; according to the temperature display sticker based on the temperature indicating ink, the fixing unit extends to the inner side of the box body, the temperature in the box body is transmitted to the recognition unit through the temperature display sticker, the recognition unit changes the color according to the change of the received temperature, and then the temperature in the box body is monitored.

Description

Technical Field

[0001] This utility model relates to temperature monitoring technology, specifically to a temperature display sticker based on temperature-indicating ink. Background Technology

[0002] Food temperature preservation is a crucial step in ensuring food quality and safety. Different types of food require specific temperature conditions for storage. Refrigerated foods, such as fresh meat, dairy products, seafood, and some fruits and vegetables, typically need to be kept in a low-temperature environment between 0°C and 4°C to slow bacterial growth and extend shelf life. Frozen foods, such as meat, seafood, and ice cream, require even lower temperatures (below -18°C) to ensure they remain fresh and edible for extended periods. Proper temperature preservation not only helps maintain the nutritional value and taste of food but also effectively prevents food spoilage and foodborne illnesses.

[0003] Chinese utility model patent CN 214407797 U discloses a temperature display label. This label, through its display layer, accurately displays the highest temperature reached by an item, thereby determining whether the item has deteriorated and its usability has been affected. The display layer can be removed and replaced using a fixing component, and it can be used on items of different shapes and appearances. Furthermore, the elastic band avoids the problem of traditional labels being fixed with adhesive, which results in difficult-to-clean adhesive residue on the item's surface.

[0004] However, this solution still has the following problems in actual use. When using cardboard boxes to pack food, especially chilled food such as fresh fruits and vegetables, the fruits and vegetables are sealed in plastic bags before being placed in cardboard boxes for packaging and transportation. However, the respiration of the fruits and vegetables does not stop and will generate heat inside the plastic bags. Cardboard boxes have a certain degree of heat insulation. Temperature display labels are affixed to the outside of the cardboard boxes. However, the temperature display labels can only show the temperature outside the cardboard boxes, so they cannot completely detect the temperature of the environment in which the food is located. Utility Model Content

[0005] The purpose of this invention is to provide a temperature display sticker based on temperature-indicating ink, so as to solve the problem that the color of the temperature display sticker on the outside of the carton is difficult to change with the temperature change inside the carton in the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a temperature display sticker based on temperature-indicating ink, comprising a housing for holding goods, and further comprising a fixing strap, an identification unit, and a fixing unit.

[0007] An identification unit is provided on the outside of the box. The identification unit can display different colors at different temperatures. A fixing unit is provided on one side of the identification unit. The fixing unit extends into the inside of the box and is used to fix the identification unit to the outside of the box. A fixing strap is also provided on the outside of the identification unit. The fixing strap is used to fix the identification unit and the fixing unit to the outside of the box.

[0008] Furthermore, the identification unit includes a color-changing strip and a color-matching strip. The outer side of the color-changing strip is fixedly connected to a fixing strip. The outer side of the color-changing strip is coated with color-changing ink. The color-matching strip is disposed on one side of the color-changing strip and is fixedly connected to the color-changing strip. The outer side of the color-matching strip is coated with different color areas in an array.

[0009] Furthermore, the fixing unit includes:

[0010] A connecting cylinder passes through the color-changing strip and the side wall of the box in sequence. The connecting cylinder is connected to the box and fixedly connected to the color-changing strip.

[0011] The sealing disc is fixedly installed on the end of the connecting cylinder near the color-changing strip.

[0012] A fixed plate is fixedly installed at one end of the connecting cylinder located on the side wall of the housing;

[0013] A rotating shaft is installed at the end of the sealing disc away from the inner cavity of the box, and passes through the sealing disc and the fixed disc in sequence. The outer side of the rotating shaft is rotatably connected to the sealing disc and the fixed disc through which they are passed. A gear end is provided at the end of the rotating shaft located inside the fixed disc.

[0014] A limiting plate is fixedly installed on the outer side of one end of the rotating shaft near the fixed plate. The limiting plate is also located in the inner cavity of the connecting cylinder and is connected to the fixed plate.

[0015] A rotating ring is fixedly installed at one end of the rotating shaft located on the outside of the connecting cylinder;

[0016] The locking unit is located inside the fixed plate;

[0017] The limiting ring is located on the outside of the locking unit.

[0018] Furthermore, the locking unit includes a first movable rod, a second movable rod, and a third movable rod;

[0019] One side of the first movable rod is engaged with the end of the gear near the limiting plate;

[0020] The second movable rod is engaged with the outer middle part of the gear end on one side;

[0021] One side of the third movable rod is engaged with the end of the gear that is away from the limiting plate.

[0022] Each of the first, second, and third movable rods has a limiting ring fixedly installed on the side away from the rotating shaft.

[0023] Furthermore, the fixed disk has three grooves arranged in a circumferential array in the middle, namely a first groove, a second groove, and a third groove. The first groove is used to accommodate a first movable rod, which can slide in the first groove of the fixed disk. The second movable rod can slide in the second groove of the fixed disk, and the third movable rod can slide in the third groove of the fixed disk.

[0024] Furthermore, the color-changing ink coated on the outer side of the color-changing strip is a thermochromic ink.

[0025] Compared with the prior art, the present invention provides a temperature display sticker based on temperature-indicating ink, which extends to the inside of the box through a fixing unit, and transmits the temperature inside the box to the recognition unit. The recognition unit changes color according to the received temperature change, thereby monitoring the temperature inside the box. The recognition unit and the fixing unit are fixed to the outside of the box by a fixing strap. When the food inside the box is taken out, the fixing strap, the recognition unit and the fixing unit can be removed together for reuse. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0028] Figure 2 This is a partial structural cross-sectional view of an embodiment of the present utility model;

[0029] Figure 3 A schematic diagram of the fixing strap, identification unit, and fixing unit structure provided in an embodiment of this utility model;

[0030] Figure 4 A schematic diagram of the fixed unit structure provided in an embodiment of this utility model;

[0031] Figure 5 This is a cross-sectional schematic diagram of the fixed unit provided in an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the fixed unit separation and cross-sectional structure provided in an embodiment of the present utility model;

[0033] Figure 7 This is a partial structural diagram of the fixing unit provided in an embodiment of the present utility model;

[0034] Figure 8 A schematic diagram of the fixed disk structure provided in an embodiment of this utility model;

[0035] Figure 9 This is a cross-sectional view of the fixed disk provided in an embodiment of the present utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Housing; 2. Fixing strap; 3. Identification unit; 31. Color-changing strip; 32. Color matching strip; 4. Fixing unit; 41. Rotating ring; 42. Rotating shaft; 421. Gear end; 43. Connecting cylinder; 44. Limiting plate; 45. Fixing plate; 46. Locking unit; 47. Sealing plate; 48. Limiting ring; 461. First movable rod; 462. Second movable rod; 463. Third movable rod; 451. First groove; 452. Second groove; 453. Third groove. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0039] Example 1:

[0040] Please see Figures 1-3 A temperature display sticker based on temperature-indicating ink includes a housing 1 for holding goods, and also includes a fixing strap 2, an identification unit 3, and a fixing unit 4.

[0041] An identification unit 3 is provided on the outside of the housing 1. The identification unit 3 can display different colors at different temperatures. A fixing unit 4 is provided on one side of the identification unit 3. The fixing unit 4 extends to the inside of the housing 1. The fixing unit 4 is used to fix the identification unit 3 to the outside of the housing 1. A fixing strap 2 is also provided on the outside of the identification unit 3. The fixing strap 2 is used to fix the identification unit 3 and the fixing unit 4 to the outside of the housing 1.

[0042] The identification unit 3 includes a color-changing strip 31 and a color matching strip 32. The outer side of the color-changing strip 31 is fixedly connected to the fixing strip 2. The outer side of the color-changing strip 31 is coated with color-changing ink. The color matching strip 32 is disposed on one side of the color-changing strip 31 and is fixedly connected to the color-changing strip 31. The outer side of the color matching strip 32 is coated with different color areas in an array.

[0043] The color-changing ink coated on the outer side of the color-changing strip 31 is a thermochromic ink.

[0044] The specific implementation method is as follows: The color-changing strip 31 is made of metal with good thermal conductivity. The outer side of the color-changing strip 31 is first sprayed with red reversible thermochromic ink with a green background. Then, transparent aerogel is used to completely wrap the outer side of the color-changing strip 31 for sealing and heat insulation. The red reversible thermochromic ink can be selected from the room temperature colorless low temperature color-sensing thermochromic screen printing ink of model 1011 from Shenzhen Chameleon Color-Changing Materials Co., Ltd. At room temperature, the colorless green background is exposed, that is, it is displayed as green. At low temperature, it is red, that is, the green background is covered and it is red. The color comparison strip 32 has a red and green contrast strip attached to its outer side. The red and green contrast strip can calibrate the color of the color-changing strip 31 and is used to identify the temperature range inside the box 1. The fixing strap 2 is an elastic band that can be stretched and shortened according to the size of the box 1, adapting to more sizes while maintaining the stability of the identification unit 3 and the fixing unit 4 on the box 1.

[0045] Example 2:

[0046] Please see Figure 4 This embodiment provides a technical solution based on Embodiment 1: the fixing unit 4 includes:

[0047] The connecting cylinder 43 passes through the color-changing strip 31 and the side wall of the box 1 in sequence. The connecting cylinder 43 is connected to the box 1 and is fixedly connected to the color-changing strip 31.

[0048] The sealing disc 47 is fixedly installed on the end of the connecting cylinder 43 near the color-changing strip 31.

[0049] The fixed plate 45 is fixedly installed on one end of the connecting cylinder 43 located on the side wall of the housing 1;

[0050] A rotating shaft 42 is installed at the end of the sealing disc 47 away from the inner cavity of the housing 1, and passes through the sealing disc 47 and the fixed disc 45 in sequence. The outer side of the rotating shaft 42 is rotatably connected to the sealing disc 47 and the fixed disc 45 through which they are passed. A gear end 421 is provided at the end of the rotating shaft 42 located inside the fixed disc 45.

[0051] The limiting plate 44 is fixedly installed on the outer side of the rotating shaft 42 near the fixed plate 45. The limiting plate 44 is also located in the inner cavity of the connecting cylinder 43 and is connected to the fixed plate 45.

[0052] A rotating ring 41 is fixedly installed on one end of the rotating shaft 42 located outside the connecting cylinder 43;

[0053] Locking unit 46 is disposed inside the fixing plate 45;

[0054] The limiting ring 48 is located on the outside of the locking unit 46.

[0055] The specific implementation method is as follows: the connecting cylinder 43, the fixing plate 45, the rotating shaft 42 and the limiting plate 44 are all made of metal. The heat inside the box 1 is transferred to the color-changing strip 31 through the fixing plate 45, the connecting cylinder 43 and the rotating shaft 42. The color-changing strip 31 changes color according to the received temperature. When installing the fixing unit 4, the connecting cylinder 43 is first inserted into the side wall of the box 1 until the fixing plate 46 is submerged inside the box 1.

[0056] The locking unit 46 includes a first movable rod 461, a second movable rod 462, and a third movable rod 463;

[0057] One side of the first movable rod 461 is engaged with the end of the gear end 421 near the limiting plate 44;

[0058] One side of the second movable rod 462 is engaged with the middle of the outer side of the gear end 421;

[0059] One side of the third movable rod 463 is engaged with the end of the gear end 421 that is away from the limiting plate 44;

[0060] A limiting ring 48 is fixedly installed on the side of the first movable rod 461, the second movable rod 462, and the third movable rod 463 away from the rotating shaft 42.

[0061] The specific implementation method is as follows: the first movable rod 461, the second movable rod 462 and the third movable rod 463 are arranged in a circular stack. The three movable rods 461, 462 and 463 have the same shape and material. They are all straight plates with a rack structure at the end. Both ends of the rack have protrusions to limit its movement range. The limiting ring 48 is used to increase the connection area between the locking unit 46 and the inner side of the box 1.

[0062] The fixed plate 45 has three grooves arranged in a circular array in the middle. The three grooves are the first groove 451, the second groove 452 and the third groove 453. The first groove 451 is used to accommodate the first movable rod 461, which can slide in the first groove 451 of the fixed plate 45. The second movable rod 462 can slide in the second groove 452 of the fixed plate 45, and the third movable rod 463 can slide in the third groove 453 of the fixed plate 45.

[0063] The specific implementation method is as follows: the rotating shaft 42 is rotatably connected to the fixed disk 45, and the limiting ring 48 can be inserted into the outer groove of the fixed disk 45. The rotating ring 41 is rotated, and the rotating ring 41 drives the rotating shaft 42 to rotate. The gear end 421 at the end of the rotating shaft 42 simultaneously drives the first movable rod 461, the second movable rod 462 and the third movable rod 463 to drive the limiting ring 48 to unfold. At this time, the distance between the limiting ring 48 and the connecting cylinder 43 is greater than the distance between the part of the box 1 that is penetrated and the connecting cylinder 43. At this time, the fixing unit 4 will not fall off from the outside of the box 1, and the identification unit 3 also stays on the outside of the box 1.

[0064] Working principle: In use, the operator first uses the tension fixing strap 2 to put the device on the outside of the box 1 and adjusts its position. After ensuring that the edge of the limiting ring 48 does not exceed the outside of the fixing plate 45, the connecting cylinder 43 passes through the side wall of the box 1 to the inside of the box 1. The rotating ring 41 is rotated. The rotating ring 41 drives the first movable rod 461, the second movable rod 462 and the third movable rod 463 through the gear end 421 at the end of the rotating shaft 42 to drive the limiting ring 48 to unfold at the same time. The limiting ring 48 is attached to the inner wall of the box 1. At this time, the fixing unit 4 will not fall off. At this time, the identification unit 3 is located outside the box 1. The temperature inside the box 1 is transmitted to the color-changing strip 31 through the fixing plate 45, the connecting cylinder 43 and the rotating shaft 42. The color of the color-changing strip 31 changes color. By comparing the color with the contrast strip on the colorimetric strip 32, the temperature inside the box 1 can be determined. When it needs to be removed, simply reverse the rotating ring 41 until the limiting ring 48 retracts into the fixing plate 45 and the fixing unit 4 is pulled out.

[0065] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A temperature display sticker based on thermochromic ink, comprising a housing (1) for holding goods, characterized in that, It also includes a fixing strap (2), an identification unit (3), and a fixing unit (4): An identification unit (3) is provided on the outside of the box (1). The identification unit (3) can display different colors at different temperatures. A fixing unit (4) is provided on one side of the identification unit (3). The fixing unit (4) extends to the inside of the box (1). The fixing unit (4) is used to fix the identification unit (3) on the outside of the box (1). A fixing strap (2) is also provided on the outside of the identification unit (3). The fixing strap (2) is used to fix the identification unit (3) and the fixing unit (4) on the outside of the box (1).

2. The temperature display sticker based on temperature-indicating ink according to claim 1, characterized in that, The identification unit (3) includes a color-changing strip (31) and a color matching strip (32). The outer side of the color-changing strip (31) is fixedly connected to the fixing strip (2). The outer side of the color-changing strip (31) is coated with color-changing ink. The color matching strip (32) is disposed on one side of the color-changing strip (31). The color matching strip (32) is fixedly connected to the color-changing strip (31). The outer side of the color matching strip (32) is coated with different color areas in an array.

3. A temperature display sticker based on thermometric ink according to claim 2, characterized in that, The fixing unit (4) includes: A connecting tube (43) passes through the color-changing strip (31) and the side wall of the box (1) in sequence. The connecting tube (43) is connected to the box (1) and the connecting tube (43) is fixedly connected to the color-changing strip (31). A sealing disc (47) is fixedly installed on the end of the connecting cylinder (43) near the color-changing strip (31); The fixed plate (45) is fixedly installed at one end of the connecting cylinder (43) located on the side wall of the box (1); A rotating shaft (42) is installed at one end of the sealing disc (47) away from the inner cavity of the housing (1) and passes through the sealing disc (47) and the fixed disc (45) in sequence. The outer side of the rotating shaft (42) is rotatably connected to the sealing disc (47) and the fixed disc (45) through which they are passed. A gear end (421) is provided at one end of the rotating shaft (42) located inside the fixed disc (45). A limiting plate (44) is fixedly installed on the outer side of one end of the rotating shaft (42) near the fixed plate (45). The limiting plate (44) is also located in the inner cavity of the connecting cylinder (43). The limiting plate (44) is connected to the fixed plate (45). A rotating ring (41) is fixedly installed on one end of the rotating shaft (42) located outside the connecting cylinder (43); Locking unit (46) is disposed inside the fixed plate (45); A limiting ring (48) is located on the outside of the locking unit (46).

4. A temperature display sticker based on temperature-indicating ink according to claim 3, characterized in that, The locking unit (46) includes a first movable rod (461), a second movable rod (462), and a third movable rod (463); One side of the first movable rod (461) is engaged with one end of the gear end (421) near the limiting plate (44); The second movable rod (462) is engaged with the middle of the outer side of the gear end (421) on one side; The third movable rod (463) is engaged with one end of the gear end (421) away from the limiting plate (44); Each of the first movable rod (461), the second movable rod (462), and the third movable rod (463) has a limiting ring (48) fixedly installed on the side away from the rotating shaft (42).

5. A temperature display sticker based on temperature-indicating ink according to claim 4, characterized in that, The fixed disk (45) has three grooves arranged in a circular array in the middle. The three grooves are a first groove (451), a second groove (452), and a third groove (453). The first groove (451) is used to accommodate a first movable rod (461). The first movable rod (461) can slide in the first groove (451) of the fixed disk (45). The second movable rod (462) can slide in the second groove (452) of the fixed disk (45). The third movable rod (463) can slide in the third groove (453) of the fixed disk (45).

6. A temperature display sticker based on thermometric ink according to claim 2, characterized in that, The color-changing ink coated on the outside of the color-changing strip (31) is a thermochromic ink.

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